Rotary plow.



PATENTED MAY 19, J. E. LIEBHART.

ROTARY PLOW.

APPLICATION FILED MAY 9. 1907.

im f i W UNTED STATES PATENT OFFICE.

JACOB E. LIEBHART, OF TOLUCA, CALIFORNIA.

ROTARY PLOW.

Application filed vlay 9, 1907.

To all Iw/iom if may Concern.'

Be it known. that l, Jiicon E. Linniin'r; a citizen oi' the United States, residing at Toluca, in the county clfllcs Angeles and State of Californiay have invented new and iisel'ul Improvements in Vltotary Plows, ol' which the following is a specification.

My invention relates to a power driven rotary plow which is particularly adapted to operate in soft soils; and it is the prime ohject thereof to provide a plow which will thoroughlyloosen'and completely turn over such soils.

A further object is to provide a plow which will leave a smooth and uni'uirowed surface after its passage thereover.

I accomplish these objects by means of the device described herein and illustrated in the accompanying drawings, in which:-

Figure l-is a plan view of my complete plow. F ig. a side elevation of the same as it appears in operation, arts being broken away. Fig. 3-- is a detai section on line 3-3 of Fig. 1 showing the drive for the rotary shares. 'Fig'. '-1` is a detail of one of the share adjusting devices.

Referring to the drawings 5 designates a frame supported by traction wheels G and guide wheel 7. Guide wheel 7 is pivoted as at 8 and is connected by sprocket chain 9 to vertical shaft 10 having on its upper end hand wheel 11 by means of which the machine may be guided in the desired direction. Mounted on frame 5 is an engine 15 which I havelshown as a single cylinder gasolene engine of the usual type and which carries on either end of its shaft a sprocket wheel 16 adapted to be rotatively'connected with the shaft by a clutch 17. Sprocket chains 18 connect sprockets 16 to sprockets 19 secured to traction wheels 6.

The above described mechanism comprises the traction motive ower 'for the plow and it will be manifest tiat by throwing one or the other ,of clutches 17 into engagement it is possible to drive the machine in the desired direction.

Two plow carrying bars .20 are pivoted on on either side of the machine to the outer end of traction axle 21 and extend rearwardly carrying in their rear ends a shaft 22 whiehis adapted to be driven in the direction shown ey the arrow in Fig. 2. Sprocket wheels 23 are secured to and mounted outside each of the traction wheels 6 and are connected by sprocket chain 24 to sprocket Wheels 25 Qn Specification of Letters Patent.

Patented May 19, 1908.

serial N0.A372,695.

shaft 22. Formed integrally with each of sprockets 25 is a hub '.26 which has onits inner periphery ratchet teeth 27 as shown in Fig. 3 and with which spring pressed pawls G0 2S pivotally secured to collar 29 keyed to shaft 22 are adapted to engage so that shaft 22 may be driven only in a direction indicated by lthe arrow. Upon any backward motion of the machine s raft 22 will not be '4; driven from the traction wheels, but will be allowed to move inde endently of them. Mounted on shaft 22 an rigidly keyed thereto are a plurality of disks 30 having toothed peripheries 31 which enables them to easily 70 cut into the soil on their rotation by the forward movement of the machine and shaft 22 is geared to rotate 'faster than traction wheels 6 so that disks 3() will have a cutting action on the soil rather than merely rolling over it. Each of disks 3() is provided with a number of adjustable shares 32 secured thereto which are adapted to cut into and remove portions of the soil between the cuts made by the serrated disks the machine moves forwardly. Bolts 33 in slots 34 provide means for adjusting the shares to different soils. When a share has picked up a load of soil and rotates rearwardly its inclination increases and the soil slides oit as shown in Fig. 2. In g5 falling from the share the part oi' the soil which was originally .on top will fall first, so

as to be on the bottom in its new position.

A transverse pivoted bar 35 secured to upwardly extending arms 36 attached to plow 90 carrying bars 20 provides means for the vertical xadjustment of the rotating shares. Two vertical screw threaded rods 37 arel mounted in frame 5 and are rovided with sprocket wheels 38 against which transverse 95 bar 35 rests. Sprocket wheels 38 are rotatively connected together by chain 39 so that both ends of transverse bar 35 may be raised or lowered together by the rotation of hand wheel40 on the upper extended end of one of 10o 'rods 37. By this means the depth to which the low shares may suck into the earth is regu atedto suitV soils of varying hardness. Traction wheels 6 are geared insuch a ratio from engine 15 that the machine will 105 move over the ground at a normal rate of'. speed. l Rotary sheaves 32 are geared from traction wheels 6 so that the peri heral speed ci disks 30 is enough greater t an the peripheral speed of,tracti0n wheels to in- 110 sure of disks4 30 cutting well into the soil. The soil is thus cutup into a number of strips and the shares merely remove the soil be tween the cuts, it not being'neoessary for them l 'ing bars 20' and cross bar 35.

to tear the soil out as Would be the oase Without the use of disks 30.` Should it become necessaryr to move the machine rearwardly disks 30.will no longer be driven by traction Wheels 6 and therefore will not cut into thesoil, but will roll over the top of the soil raisy This same action will take place should the disks encounter a large boulder or other hard mattenand the shares will he raised so as not to strike l such. i

It Will be observed thatl ,have produced a plow which is especially applicable to soft j land san-dv soils W 1ere the work can he done i very qic vly. It will also=be noted that the shares will com letely overturn all the' soil t passed over'by t `e machine thus working the' f soil to the greatest extent possible. i

Having'described my invention what I claim as nevv and desire to secure by Letters- Patent is 1. Ina rotary plow, a trame provided with j traction Wheels, a motor mounted on said l f frame having driving connection with said Wheels7 a plow frame pivotally mounted on said 'first named frame, adjusting means for said plow -frame, a plurality of disks rotatively mounted in the outer end of said plow frame, said disks being provided with serrated peripheries, soil turning shares adjustably secured to. the face of said disks, and drivingconnection between saidmotor and said disks to -drive said disks at Aa higher peripheral velocityY than said traction Wheels are driven 'and in the same direction as smidv traction Wheels are driven.

2. Ina low, a rotary share comprising a disk provi ed with a serrated periphery, and soil turmngr shares adjustablyY secured`to the face of said disks and projecting at right an' gles' to the face thereof.

In witness that I claim'the foregoing Ihave hereunto subscribed my name this 2nd day' of May, 1907. l

. JACQB EQLIEBHAR.

. Witnesses EDMND STAUSE," v MYRTLE AA.. Jeansr 

